Scattered thunderstorms pulsed to severe limits across south-central and southeast Wisconsin along and ahead of a cold front.  Large hail [3/4 inch to 1.75 inch in diameter(golfball size)], damaging downburst winds, and some funnel clouds were produced.  Hail up to 1.25 inch in diameter fell in Brodhead (Green Co.), resulting in 500 dollars of damage to a vehicle's windshield.  Power-lines were brought down by tree debris near Busseyville.  A frontal boundary stretched from central Minnesota through southern Wisconsin to northern Indiana during the afternoon of May 19.  Temperatures were in the mid 40s across northeast Wisconsin, while places across central Illinois recorded temperatures in the low to mid 80s.  As a low pressure system traveled along this front, scattered thunderstorms developed over southern Wisconsin., as a result of the strong temperature contrast during the early to mid afternoon. , and a few funnel clouds.

Hail in COLUMBIA, WISCONSIN
From 19-MAY-05 14:40:00 to 19-MAY-05 14:40:00 (CST)
Location: PORTAGE
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in ROCK, WISCONSIN
From 19-MAY-05 14:41:00 to 19-MAY-05 14:41:00 (CST)
Location: BELOIT
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in ROCK, WISCONSIN
From 19-MAY-05 14:20:00 to 19-MAY-05 14:20:00 (CST)
Location: JANESVILLE
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in ROCK, WISCONSIN
From 19-MAY-05 15:00:00 to 19-MAY-05 15:00:00 (CST)
Location: BELOIT
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Hail in COLUMBIA, WISCONSIN
From 19-MAY-05 14:28:00 to 19-MAY-05 14:28:00 (CST)
Location: PORTAGE
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in ROCK, WISCONSIN
From 19-MAY-05 14:05:00 to 19-MAY-05 14:05:00 (CST)
Location: AFTON
Magnitude: 1.25 
Reported by: TRAINED SPOTTER

Funnel Cloud in WALWORTH, WISCONSIN
From 19-MAY-05 15:00:00 to 19-MAY-05 15:00:00 (CST)
Location: DELAVAN
Reported by: AMATEUR RADIO

Hail in ROCK, WISCONSIN
From 19-MAY-05 13:46:00 to 19-MAY-05 13:46:00 (CST)
Location: FOOTVILLE
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Funnel Cloud in ROCK, WISCONSIN
From 19-MAY-05 13:36:00 to 19-MAY-05 13:36:00 (CST)
Location: EVANSVILLE
Reported by: TRAINED SPOTTER

Hail in GREEN, WISCONSIN
From 19-MAY-05 13:36:00 to 19-MAY-05 13:36:00 (CST)
Location: BRODHEAD
Magnitude: 1.25 
Property damage: .5K
Reported by: TRAINED SPOTTER

A windshield was broken.

Funnel Cloud in DANE, WISCONSIN
From 19-MAY-05 14:05:00 to 19-MAY-05 14:05:00 (CST)
Location: MADISON
Reported by: TRAINED SPOTTER

Hail in JEFFERSON, WISCONSIN
From 19-MAY-05 15:00:00 to 19-MAY-05 15:00:00 (CST)
Location: WATERLOO
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in DANE, WISCONSIN
From 19-MAY-05 15:05:00 to 19-MAY-05 15:05:00 (CST)
Location: MADISON
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in JEFFERSON, WISCONSIN
From 19-MAY-05 16:58:00 to 19-MAY-05 16:58:00 (CST)
Location: BUSSEYVILLE
Magnitude: 61 EG
Property damage: 10K
Reported by: LAW ENFORCEMENT

Powerlines down.

Hail in ROCK, WISCONSIN
From 19-MAY-05 14:10:00 to 19-MAY-05 14:10:00 (CST)
Location: AFTON
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in ROCK, WISCONSIN
From 19-MAY-05 14:15:00 to 19-MAY-05 14:15:00 (CST)
Location: JANESVILLE
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in DODGE, WISCONSIN
From 19-MAY-05 16:20:00 to 19-MAY-05 16:20:00 (CST)
Location: RICHWOOD
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Hail in ROCK, WISCONSIN
From 19-MAY-05 14:05:00 to 19-MAY-05 14:05:00 (CST)
Location: JANESVILLE
Magnitude: 0.88 
Reported by: TRAINED SPOTTER